| Year | Winning Leader | % Correct |
|---|---|---|
| 2019 | Boris Johnson | 100%
|
| Rishi Sunak | 100%
| |
| 2024 | Keir Starmer | 99%
|
| 2017 | Theresa May | 99%
|
| 2005 | Tony Blair | 99%
|
| 2015 | David Cameron | 98%
|
| 2010 | David Cameron | 98%
|
| 1987 | Margaret Thatcher | 98%
|
| 1983 | Margaret Thatcher | 98%
|
| 1979 | Margaret Thatcher | 98%
|
| 2001 | Tony Blair | 98%
|
| 1997 | Tony Blair | 98%
|
| 1992 | John Major | 97%
|
| Jeremy Corbyn | 96%
| |
| Jeremy Corbyn | 95%
| |
| Gordon Brown | 93%
| |
| John Major | 91%
| |
| 1951 | Winston Churchill | 90%
|
| Winston Churchill | 89%
| |
| 1945 | Clement Attlee | 87%
|
| Ed Miliband | 87%
| |
| Winston Churchill | 86%
| |
| 1950 | Clement Attlee | 85%
|
| 1974 (Oct) | Harold Wilson | 84%
|
| 1974 (Feb) | Harold Wilson | 82%
|
| Clement Attlee | 81%
| |
| 1955 | Anthony Eden | 78%
|
| 1970 | Edward Heath | 77%
|
| 1966 | Harold Wilson | 77%
|
| 1964 | Harold Wilson | 77%
|
| 1959 | Harold Macmillan | 76%
|
| Edward Heath | 75%
| |
| Edward Heath | 74%
| |
| Harold Wilson | 74%
| |
| James Callaghan | 74%
| |
| Edward Heath | 69%
| |
| Alec Douglas-Home | 66%
| |
| Clement Attlee | 66%
| |
| Neil Kinnock | 66%
| |
| Neil Kinnock | 64%
| |
| Michael Foot | 63%
| |
| William Hague | 60%
| |
| Michael Howard | 55%
| |
| Hugh Gaitskell | 35%
|